// Copyright (c) 1998-2008 Adrian Kuhn <akuhn(a)students.unibe.ch>
//
// This file is part of ch.akuhn.util.
//
// ch.akuhn.util is free software: you can redistribute it and/or modify it
// under the terms of the GNU Lesser General Public License as published by the
// Free Software Foundation, either version 3 of the License, or (at your
// option) any later version.
//
// ch.akuhn.util is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
// or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
// License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with ch.akuhn.util. If not, see <http://www.gnu.org/licenses/>.
//
package ch.akuhn.util;
/**
* Methods for static import.
*
* @author Adrian Kuhn
*
*/
@SuppressWarnings("unchecked")
public abstract class Extensions {
// private final static Object NONE = new Object();
public static Class<?> leastUpperBound(Class<?> initial, Object... os) {
Class $ = initial;
for (Object o : os) {
while (!$.isAssignableFrom(o.getClass())) {
$ = $.getSuperclass();
if ($ == null) return Object.class;
}
}
return $;
}
private Extensions() {
throw new AssertionError();
}
}